大学化学 >> 2025, Vol. 40 >> Issue (8): 284-290.doi: 10.12461/PKU.DXHX202410102

化学实验 上一篇    下一篇

新型铬(VI)检测试纸的制备及应用——介绍一个应用化学综合实验

王瑞虎, 卢爱党   

  1. 河北工业大学化工学院, 天津 300130
  • 收稿日期:2024-10-30 录用日期:2025-01-03 发布日期:2025-07-19
  • 通讯作者: 卢爱党 E-mail:luaidang@hebut.edu.cn
  • 基金资助:
    河北省高等教育教学改革研究与实践项目(2023GJJG061, 2021GJJG032)；河北工业大学本科教育教学改革研究与实践项目(202201013)；河北省研究生课程思政建设项目(YKCSZ2022015)

Preparation and Application of a Novel Chromium (VI) Detection Test Paper: A Comprehensive Applied Chemistry Experiment

Ruihu Wang, Aidang Lu   

  1. School of Chemical Engineering, Hebei University of Technology, Tianjin 300130, China
  • Received:2024-10-30 Accepted:2025-01-03 Published:2025-07-19
  • Contact: Aidang Lu E-mail:luaidang@hebut.edu.cn

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摘要： 介绍了一个应用化学综合实验——新型铬(VI)检测试纸的制备及应用。实验内容涵盖了有机化学和分析化学的相关知识点和实验操作。前沿科研成果向实验教学一线转化是全面提升新时代大学生科研素养、创新潜质和解决科学问题能力的重要途径。结合前期科研论文发表的成果，以三(4-咪唑基苯基)胺与苄基溴为原料合成了可以高选择性识别Cr2O72−的咪唑盐ImBn-Br，并制作成铬检测试纸，实现水样中Cr2O72−可视化快速检测。通过本实验不但可以锻炼学生加热回流、抽滤及溶液的配制等基本操作技能，还能培养学生在污染物检测和去除等领域的科研兴趣以及提高环保意识。该实验技术方法新颖，过程直观可视，具有很强的实用性和推广度，适合在本科高年级开展。

关键词: 应用化学综合实验, 科教转化, 咪唑盐, 铬检测试纸

Abstract: This paper presents a comprehensive applied chemistry experiment focused on the preparation and application of a novel Chromium (VI) detection test paper. The experiment encompasses key concepts and techniques from both organic and analytical chemistry. A critical approach to enhancing college students’ scientific research literacy, innovative potential, and problem-solving capabilities in today’s context involves translating cutting-edge research findings into practical laboratory instruction. Utilizing tri(4-imidazolylphenyl) amine and benzyl bromide as starting materials, we synthesized ImBn-Br, an imidazolium compound capable of selectively recognizing Cr2O72−. This compound was subsequently developed into a chromium detection test strip, facilitating rapid and visual detection of Cr2O72− in water samples. This experiment not only provides students with essential skills in heating reflux, filtration, and solution preparation but also fosters their interest in pollution detection and remediation while enhancing their environmental awareness. The methodology employed is innovative, visually accessible, and highly practical, making it well-suited for implementation in senior undergraduate courses.

Key words: Comprehensive applied chemistry experiment, Science and education transformation, Imidazolium, Chromium (VI) detection test paper